3500 Sierra Denali navigation system
Just purchased my new 2015 Sierra. Have a couple of questions on the Navigation system. 1. The Truck is equipped with the navigation system as well as onstar. If I do not keep onstar will I loose th...
Forum Discussion
#1 - Your 2015 is a different design than my 2011, but cancelling Onstar will still allow the navigation to function. You can still (painfully) enter addresses or find POI. Onstar offers similar/redundant voice guidance as well as a service to send info/destinations to your car from either a cell phone app or person you talk to.
